How to load test your site with Load Curl

01Open the Load Curl dashboard

Go to app.loadcurl.com to access the Load Curl app. This is where you configure API requests, set load parameters, and watch live metrics while a test runs.

If you already have an account, sign in. Otherwise, create a free account with your email — no infrastructure setup required.

02Register or sign in with email

On the sign-in screen, enter your email and password, or use Google to continue. New users can click Create account to register.

Once authenticated, you land in the dashboard where you can import HTTP requests, configure concurrency, and monitor real-time performance metrics.

03Create an organization (teams & Pro)

Organization management is available on Pro and Enterprise plans. If your account requires an organization, open the Organization page from the sidebar.

You can create a new organization or accept an email invite from a teammate. After setup, return to the dashboard to continue.

• →Click Create organization on the Organization page.
• →Enter your company or team name — you become the organization owner.
• →Invite teammates from organization settings to share tests and results.

04Configure your API request

Use the Request builder to define the endpoint you want to load test. You can fill in the form manually or paste a curl or Postman snippet to populate fields automatically.

Set the HTTP method and target URL, optionally name your scenario, then fine-tune Params, Headers, and Body on the tabs below.

• Method & URL — choose GET, POST, PUT, PATCH, or DELETE and enter your endpoint.
• Scenario name — optional label to identify this test case in your history.
• Params — query string key-value pairs sent with the request.
• Headers — authentication tokens, Content-Type, and custom headers.
• Body — JSON or text payload for POST, PUT, or PATCH requests.

Params

Add query string key-value pairs sent with the request.

Headers

Set authentication tokens, Content-Type, and custom headers.

Body

Provide a JSON or text payload for POST, PUT, or PATCH requests.

05Import from curl or Postman (optional)

The fastest way to get started is to paste an existing curl command or Postman code snippet. Click Paste curl / Postman in the request builder — Load Curl parses the snippet and fills in method, URL, headers, params, and body automatically. Use the help icon on the button for a quick walkthrough and example.

06Set load test parameters

In the Load test section, configure how much traffic to send and for how long. Start with conservative values on staging before testing production.

• →Concurrent users — number of virtual users hitting your endpoint at the same time.
• →Duration (seconds) — how long the test runs once at full load.
• →Ramp-up (seconds) — time to gradually add concurrent users (0 starts all at once).
• →Requests per second — throttle per-user request rate during the test.

07Start, stop, and reset the test

When your request and load profile are ready, use the event controls to run the test. Status shows Idle before a run, then updates while workers are active.

• →Start Test — launches distributed workers against your configured endpoint.
• →Stop Test — ends a running test early if you see errors or need to abort.
• →Reset — clears the current run state so you can adjust settings and try again.

08Monitor live metrics and logs

While the test runs, live metric cards update in real time. A log panel below shows individual request activity and responses as workers execute.

After the test completes, review total requests, success vs. failed counts, average response time, and throughput (RPS) to understand how your API performed under load.

• →Total — cumulative requests sent during the run.
• →Success / Failed — breakdown of HTTP outcomes.
• →Avg Time — mean response latency in milliseconds.
• →RPS — current requests per second throughput.
• →Logs / response — per-request output streamed during the test.